4 Answers
4

As a freelance, sometimes I work also at my clients's company offices, when I do a project for that specific client, if they have a free office or desk usually I can stay with them from a few hours up to a few days.
While I work there I have people around, and the client is happy because we can interact more efficiently as I develop their project.

Of course I do that only with clients that I get along very well.

Other places where you can work being with others is the city or university library, parks when is summer, etc.

I wouldn't stay at Starbucks or places like that, I would feel very uncomfortable and is not a stimulating place.

Coffee shops - I try all the coffee places in the area. There are some good small restaurants I discover too. I love it when I get to check out places other than Starbucks. Try it. You will be surprised at the places you'll find in there that are good for work.

Co-working spaces - you can pay for co-working spaces in your area so you can also meet other freelancers and get to chat with them.

A friend's house - Yes. This works. If you are really feeling lonely, go to a close friend's house. Just make sure you are not a burden at the moment. :) Let them know why you chose his/her place for work. Not only will this make you feel less lonely, you'd get to reconnect with them too.

Trying not to sound like a plug for any particular place, but there are shared/collabrative workspaces popping up all over the place.

The one I am most familiar with is Gangplank It is a location you can just drop into an do your work. There are no fees and you don't have to share anything. However the idea is basically that while you are sitting there doing your work, you have a casual conversation with someone else doing their work and you both discover and untapped opportunity and come together to fulfill it and make more $$$.

My local group provides basic desk/tables, free internet and free printing, and a free conference room - all designed to lure unsuspecting people into their midst in order to foster new business opportunities! These facilities have been donated by people/businesses with no expectation that you have to repay other than by being open to talking to and/or helping other people.

For more general ideas, google collaborative works spaces in your area and see what pops up. Also check up on any business incubator groups that may also have workspaces. There are also some subscription based groups doing the same thing, and I would also check into any maker groups in your area as well.